ZEMCH 2019 International Conference Proceedings April.2020 | Page 46
5. Conclusions
In this study, the performance change of heat recovery type ventilator according to the pre‐filt,
H11, H12, H13 dust collection filter type was studied. The results and suggestions are as follows.
As a result of the airflow test, the higher the grade of HEPA filter in the 100CHM heat‐recovery type
ventilator using the pre‐filter, the larger the airflow decrease. In the 100CMH heat‐recovery ventilator,
when the H13 filter was applied, the air volume decreased 36%, resulting in the largest change and
power consumption increased by 23% compared with the pre‐filter only.
The total heat exchange efficiency was the highest when the H13 filter was applied, but the increase
rate of the effective heat exchange efficiency considering the air leakage rate was similar for each filter.
The energy coefficient was highest when H11 filter was applied. These results indicate that the energy
coefficient changes as the power consumption increases due to the fan motor operation according to
the pressure difference by the HEPA filter
The particle cleaning capacity test showed the highest dust cleaning ability when H12 filter was applied
to the heat‐recovery ventilator. It is analyzed that the H13 filter is reduced in performance due to the
pressure difference inside the ventilator
As a result of comprehensive research on noise, efficiency, and dust purification ability, the H12 filter
can be considered as the best filter for heat recovery ventilator.
At present, there is no performance standard for clean field technology such as dust cleaning
ability and deodorization efficiency for products with HEPA filter applied to heat recovery ventilator.
Therefore, it is necessary to establish performance standards for products that combine the clean
function of heat recovery type ventilation system with filter in future technology development and
policy design. In addition, it is necessary to establish the standard of energy coefficient when applying
high‐performance filter of HEPA filter level.
Author Contributions: “conceptualization, Jung‐Sub Seo 1 . and Young‐Mo Kang 2 .; methodology, Jung‐Sub
Seo 1 . ,Young‐Mo Kang 2 and Jong‐Won Kim 3 .; validation, Jung‐Sub Seo 1 . and Dong‐In Kang 6 .; formal analysis, Jong‐
Won Kim 3 and Byung‐Hun Jeon 4 .; investigation, Jung‐Sub Seo 1 . and Dong‐In Kang 6 ; data curation, Young‐Mo
Kang 2 .; writing—original draft preparation, Jung‐Sub Seo 1 .; writing—review and editing, Soo‐Kwang Yang 5 .;
visualization, Byung‐Hun Jeon 4 .; supervision, Young‐Chull Ahn 7 ; project administration, Young‐Chull Ahn 7 .;
funding acquisition, Jong‐Won Kim 3 .”
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© 2019 by the authors. Submitted for possible open access publication under the terms
and conditions of the Creative Commons Attribution (CC BY) license
(http://creativecommons.org/licenses/by/4.0/).
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ZEMCH 2019 International Conference l Seoul, Korea